Switching power supply chip model
There are many models of switching power supply thick die chips, here are a few examples: STR456A, STR5412, STR6020S, STR6601, STR-F6454, STR-F66600, STR-F6707, STR-G5653, STR-S6309, STR-S6708, STR-S6709, etc. .
The 384x series is the most common, and the older power supplies, 494/7500, are also more common.
The commonly used switching power supply chip TB6806 efficiency meets the six-level energy efficiency requirements. This chip has a built-in power MOS and adopts an SOP/DIP-8 package, which minimizes the number of system components and uses frequency modulation methods to improve system efficiency and reduce electromagnetic interference. Built-in loop compensation can save additional compensation or filter capacitors, and built-in cable voltage drop compensation, thus achieving good load regulation. Now widely used in charger adapter power supply manufacturers.
The efficiency of TB6806 and TB6818 meets the requirements of class 6 energy efficiency Low standby power consumption is less than 70mW Primary side feedback, built-in 600V power MOSFET QR-PSR control improves work efficiency ±4% constant voltage and constant current accuracy, multi-mode PSR control built-in soft start, ultra-low start Current, pin floating protection, intelligent short-circuit protection technology, can achieve short-circuit protection even when the leakage inductance is large and the VDD voltage is high.
